<template>
    <div class="login_container">
        <div class="login_box">
            <!--头像区-->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区 -->
            <el-form ref="loginFormRef" :model="loginForm" :rules="loginFromRules" label-width="0px" class="login_form">
                <!-- 用户名 -->
             <el-form-item prop="username">
               <el-input v-model="loginForm.username"  prefix-icon="el-icon-user"></el-input>
             </el-form-item>
             <!-- 密码 -->
             <el-form-item prop="password">
               <el-input v-model="loginForm.password" prefix-icon="el-icon-lock" type="password"></el-input>
             </el-form-item>
             <!-- 按钮区域 -->
             <el-form-item class="btns">
                 <el-button type="primary" @click="login">登录</el-button>
                  <el-button type="info" @click="resetLoginForm">重置</el-button>
             </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
  data () {
    return {
      // 表单数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'

      },
      // 表单验证规则对象
      loginFromRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 10, message: '长度在 6 到 10 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮，重置登录表单
    resetLoginForm () {
      // console.log(this);
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}

</script>

<style lang="less" scoped>
.login_container{
    position: relative;
    background-color:#BBE6D6 ;
    height: 100%;
    }
    .login_box{
        position: absolute;
        top: 50%;
        left:50%;
        transform: translate(-50%,-50%);
        width: 450px;
        height: 300px;
        background-color: #fff;
        border-radius: 3px;
    }
    .avatar_box{
     position: absolute;
            left: 50%;
            transform: translate(-50%,-50%);
        height: 100px;
        width: 100px;
        border: 4px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        background-color: #fff;
        img{
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
    .login_form{
        position: relative;
        top: 50%;
        transform: translateY(-40%);
        padding: 0 30px;
    }
    .btns {
        display: flex;
        justify-content: flex-end;
    }
</style>
